The core activity of Mellarius Treuhand AG and Mellarius Immobilien AG encompasses a wide range of services, including: Financial and accounting services (e.g. accounting, annual financial statements, payroll accounting); Tax consulting (e.g. tax returns, tax planning, VAT declarations); Personnel administration; Corporate consulting (e.g. company formation, conversion, restructuring, succession planning); Inheritance and law (e.g. advice on inheritance law, last will and testament, advance care directive); Real estate (e.g. marketing and brokerage of real estate, management of rental properties, creation of rental agreements); Software (e.g. knowledge of various accounting products). The company thus offers a comprehensive range of services for companies and private individuals, focusing on the areas of finance, taxes, personnel, law and real estate.